package cn.mandy.sysadmin.config;


import cn.mandy.sysadmin.component.JwtAuthenticationTokenFilter;
import cn.mandy.sysadmin.component.RestAuthenticationEntryPoint;
import cn.mandy.sysadmin.component.RestfulAccessDeniedHandler;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;


/**
 * SpringSecurity的配置
 * Created by Winter
 */
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled=true)
public class SysMmSecurityConfig extends WebSecurityConfigurerAdapter {

//    @Autowired  no used
//    private AuthenticationProvider provider;
//    @Override
//    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
//        //super.configure(auth);
//        auth.authenticationProvider(provider);
//    }
    @Autowired
    private RestfulAccessDeniedHandler restfulAccessDeniedHandler;
    @Autowired
    private RestAuthenticationEntryPoint restAuthenticationEntryPoint;

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf()// 由于使用的是JWT，我们这里不需要csrf
                .disable()
                .sessionManagement()// 基于token，所以不需要session
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                .antMatchers(HttpMethod.GET // 允许对于网站静态资源的无授权访问
                        ,"/"
                        ,"/*.html"
                        ,"/favicon.ico"
                        ,"/**/*.html"
                        ,"/**/*.css"
                        ,"/**/*.js"
                        ,"/swagger-resources/**"
                        ,"/v2/api-docs/**"
                        ,"/sysadmin/avatarUpload"
                        ,"/webjars/springfox-swagger-ui/**"
                        //,"/sysadmin/dict/list"
                        //,"/sysadmin/info"
                )
                .permitAll()
                .antMatchers("/sysadmin/login")// 对登录注册要允许匿名访问
                .permitAll()
                .antMatchers(HttpMethod.OPTIONS)//跨域请求会先进行一次options请求
                .permitAll()
//                .antMatchers("/**")//测试时全部运行访问
//                .permitAll()
                .anyRequest().access("@mandyRbacService.hasPermission(request,authentication)")
                .and().cors();//这里再测试一下
                //.anyRequest()// 除上面外的所有请求全部需要鉴权认证
                //.authenticated();
        // 禁用缓存
        httpSecurity.headers().cacheControl();
        // 添加JWT filter
        httpSecurity.addFilterBefore(jwtAuthenticationTokenFilter(), UsernamePasswordAuthenticationFilter.class);
        //添加自定义未授权和未登录结果返回
        httpSecurity.exceptionHandling()
                .accessDeniedHandler(restfulAccessDeniedHandler)
                .authenticationEntryPoint(restAuthenticationEntryPoint);
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService())
                .passwordEncoder(passwordEncoder());
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    public JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter(){
        return new JwtAuthenticationTokenFilter();
    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}
